25 exam-style questions. Write your answer, check it against the mark scheme and tick the points you earned. Your marks stay on this device. Your writing is not saved.
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4.3 Insect-pollinated and wind-pollinated flowers
Exam question
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Compare the structure of insect-pollinated and wind-pollinated flowers.
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Total for this question: 4 marks
4.3 Insect-pollinated and wind-pollinated flowers
Exam question
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Which feature is typical of a wind-pollinated flower?
(1)Total for this question: 1 mark
4.3 Insect-pollinated and wind-pollinated flowers
Exam question
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Explain why wind-pollinated flowers produce large amounts of pollen.
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Total for this question: 2 marks
4.3 Insect-pollinated and wind-pollinated flowers
Exam question
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Explain why the pollen of wind-pollinated flowers is small and light.
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Total for this question: 2 marks
4.3 Insect-pollinated and wind-pollinated flowers
Exam question
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Explain why insect-pollinated flowers have nectar.
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Total for this question: 2 marks
4.3 Insect-pollinated and wind-pollinated flowers
Exam question
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Describe how pollen is transferred by a bee.
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Total for this question: 2 marks
4.3 Insect-pollinated and wind-pollinated flowers
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State the function of the anther and the stigma.
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Total for this question: 2 marks
4.3 Insect-pollinated and wind-pollinated flowers
Exam question
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Explain why the anthers of wind-pollinated flowers hang outside the flower.
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Total for this question: 2 marks
4.3 Insect-pollinated and wind-pollinated flowers
Exam question
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Explain why insect-pollinated pollen is often spiky or sticky.
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Total for this question: 2 marks
4.3 Insect-pollinated and wind-pollinated flowers
Exam question
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State what is meant by pollination.
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Total for this question: 1 mark
4.3 Insect-pollinated and wind-pollinated flowers
Exam question
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Compare self-pollination with cross-pollination.
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Total for this question: 2 marks
4.3 Insect-pollinated and wind-pollinated flowers
Exam question
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Explain why cross-pollination is an advantage to a species.
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Total for this question: 2 marks
4.3 Insect-pollinated and wind-pollinated flowers
Exam question
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Illustrative data.
| Feature | Flower X | Flower Y |
|---|---|---|
| petals | large, yellow | absent |
| stigma | small, sticky, inside | large, feathery, outside |
| pollen per anther | 2 000 | 50 000 |
| scent | strong | none |
Identify which flower is wind-pollinated. Give a reason using the table.
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Total for this question: 2 marks
4.3 Insect-pollinated and wind-pollinated flowers
Exam question
Mark points shown after marking
| Feature | Flower X | Flower Y |
|---|---|---|
| petals | large, yellow | absent |
| stigma | small, sticky, inside | large, feathery, outside |
| pollen per anther | 2 000 | 50 000 |
| scent | strong | none |
Calculate how many times more pollen Y makes per anther than X.
(2)Total for this question: 2 marks
4.3 Insect-pollinated and wind-pollinated flowers
Exam question
Mark points shown after marking
| Feature | Flower X | Flower Y |
|---|---|---|
| petals | large, yellow | absent |
| stigma | small, sticky, inside | large, feathery, outside |
| pollen per anther | 2 000 | 50 000 |
| scent | strong | none |
Explain why flower X has a strong scent.
(2)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 2 marks
